47144253209 has 4 divisors (see below), whose sum is σ = 47162066304. Its totient is φ = 47126440116.

The previous prime is 47144253203. The next prime is 47144253251. The reversal of 47144253209 is 90235244174.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47144253209 - 2⁴ = 47144253193 is a prime.

It is a super-2 number, since 2×47144253209² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47144253203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8902577 + ... + 8907870.

It is an arithmetic number, because the mean of its divisors is an integer number (11790516576).

Almost surely, 2^47144253209 is an apocalyptic number.

It is an amenable number.

47144253209 is a deficient number, since it is larger than the sum of its proper divisors (17813095).

47144253209 is a wasteful number, since it uses less digits than its factorization.

47144253209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17813094.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 47144253209 in words is "forty-seven billion, one hundred forty-four million, two hundred fifty-three thousand, two hundred nine".